A nurse is planning care for a newborn who is small for gestational age (SGA). Which of the following is the priority intervention the nurse should include in the newborn's plan of care?

The correct answer is D: Monitor blood glucose levels. This is the priority intervention for an SGA newborn as they are at increased risk for hypoglycemia. Hypoglycemia in newborns can lead to serious complications such as seizures and brain injury. Monitoring blood glucose levels allows for early detection and prompt intervention if hypoglycemia occurs. Monitoring 1&0 (A), axillary temperature (B), and weight (C) are important as well but do not take precedence over monitoring blood glucose levels in an SGA newborn.